{% if site.google.adsense.content_header and site.url contains 'yansongda.cn' %}
<!-- 博客-文章头部 -->
<ins class="adsbygoogle content-header-ad"
     data-ad-client="ca-pub-7103708224163690"
     data-ad-slot="7391529677"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>
<br />
{% endif %}
